- restructuring of mimeTypes based on the parsers
- displaying parser usage count
- displaying human readably parser names
- displaying parser version information
*) httpdFileHandler.java
- adding possibility to support "streaming" servlets
which are special servlets that can communicate with
the client via the connection streams autonomous
- the name of these new servlet types must end with the
file extension .stream
- this feature will be needed by the yacy ScreenSaver
class to fetch statistic data from the peer without the
need to reconnect to the server all the time
*) Adding human readable names and version information for
all supported parsers
*) plasmaParser.java
- adding new structure to store parser statistic data
*) Adding openDocument parser
- can be used to parse odt files
*) jmimemagic
- adding rules to detect openDocument formats properly
*) serverLog.java
- adding functions that can be used to query if a given
logging level is enabled or not.
git-svn-id: https://svn.berlios.de/svnroot/repos/yacy/trunk@1140 6c8d7289-2bf4-0310-a012-ef5d649a1542
pull/1/head
theli
19 years ago
parent
3037c1e73b
commit
bdf30117c1
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package de.anomic.plasma.parser;
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import java.util.Hashtable;
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public class ParserInfo {
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// general parser info
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public Class parserClass;
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public String parserClassName;
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public String parserName;
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public String parserVersionNr;
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// parser properties
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public String[] libxDependencies;
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public Hashtable supportedMimeTypes;
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// usage statistic
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public int usageCount = 0;
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public String toString() {
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StringBuffer toStr = new StringBuffer();
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toStr.append(this.parserName).append(" V")
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.append((this.parserVersionNr==null)?"0.0":this.parserVersionNr).append(" | ")
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.append(this.parserClassName).append(" | ")
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.append(this.supportedMimeTypes);
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return toStr.toString();
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}
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public synchronized void incUsageCounter() {
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this.usageCount++;
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}
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}
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<?xml version="1.0"?>
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<project name="YACY - odtParser" default="dist">
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<description>
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A class to parse gzip files
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</description>
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<property name="parserShortName" value="odt"/>
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<property name="parserVersion" value="0.1"/>
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<property name="parserLongName" value="yacyContentParser_${parserShortName}"/>
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<property name="parserArchive" location="${release}/${parserLongName}_${parserVersion}.tgz"/>
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<target name="compile">
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<javac srcdir="${src}/de/anomic/plasma/parser/${parserShortName}" destdir="${build}" source="${javacSource}" target="${javacTarget}" debug="true" debuglevel="lines,vars,source">
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<classpath>
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<pathelement location="${build}" />
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<pathelement location="${libx}/odf_utils_05_11_10.jar" />
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</classpath>
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</javac>
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</target>
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<target name="zip" depends="compile">
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<tar destfile="${parserArchive}" compression="gzip">
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<tarfileset dir="${libx}"
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includes="odf_utils_05_11_10.*"
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prefix="${releaseDir}/libx/"
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dirmode="755" mode="644"/>
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<tarfileset dir="${src}/de/anomic/plasma/parser/${parserShortName}"
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prefix="${releaseDir}/source/de/anomic/plasma/parser/${parserShortName}"
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dirmode="755" mode="644"/>
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<tarfileset dir="${build}/de/anomic/plasma/parser/${parserShortName}"
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prefix="${releaseDir}/classes/de/anomic/plasma/parser/${parserShortName}"
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dirmode="755" mode="644"/>
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</tar>
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</target>
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<target name="copy" depends="compile">
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<copy todir="${release}/libx/">
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<fileset dir="${libx}" includes="odf_utils_05_11_10.*"/>
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</copy>
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<copy todir="${release}/source/de/anomic/plasma/parser/${parserShortName}">
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<fileset dir="${src}/de/anomic/plasma/parser/${parserShortName}" includes="**/*"/>
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</copy>
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<copy todir="${release}/classes/de/anomic/plasma/parser/${parserShortName}">
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<fileset dir="${build}/de/anomic/plasma/parser/${parserShortName}" includes="**/*"/>
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</copy>
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</target>
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<target name="dist" depends="compile,zip" description="Compile and zip the parser"/>
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</project>
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@ -0,0 +1,214 @@
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//zipParser.java
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//------------------------
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//part of YaCy
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//(C) by Michael Peter Christen; mc@anomic.de
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//first published on http://www.anomic.de
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//Frankfurt, Germany, 2005
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//
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//this file is contributed by Martin Thelian
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//last major change: 16.05.2005
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//
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//This program is free software; you can redistribute it and/or modify
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//it under the terms of the GNU General Public License as published by
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//the Free Software Foundation; either version 2 of the License, or
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//(at your option) any later version.
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//
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//This program is distributed in the hope that it will be useful,
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//but WITHOUT ANY WARRANTY; without even the implied warranty of
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//MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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//GNU General Public License for more details.
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//
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//You should have received a copy of the GNU General Public License
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//along with this program; if not, write to the Free Software
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//Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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//
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//Using this software in any meaning (reading, learning, copying, compiling,
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//running) means that you agree that the Author(s) is (are) not responsible
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//for cost, loss of data or any harm that may be caused directly or indirectly
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//by usage of this softare or this documentation. The usage of this software
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//is on your own risk. The installation and usage (starting/running) of this
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//software may allow other people or application to access your computer and
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//any attached devices and is highly dependent on the configuration of the
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//software which must be done by the user of the software; the author(s) is
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//(are) also not responsible for proper configuration and usage of the
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//software, even if provoked by documentation provided together with
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//the software.
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//
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//Any changes to this file according to the GPL as documented in the file
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//gpl.txt aside this file in the shipment you received can be done to the
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//lines that follows this copyright notice here, but changes must not be
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//done inside the copyright notive above. A re-distribution must contain
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//the intact and unchanged copyright notice.
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//Contributions and changes to the program code must be marked as such.
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package de.anomic.plasma.parser.odt;
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import java.io.ByteArrayInputStream;
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import java.io.File;
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import java.io.InputStream;
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import java.net.URL;
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import java.util.Enumeration;
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import java.util.Hashtable;
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import java.util.zip.ZipEntry;
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import java.util.zip.ZipFile;
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import com.catcode.odf.ODFMetaFileAnalyzer;
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import com.catcode.odf.OpenDocumentMetadata;
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import com.catcode.odf.OpenDocumentTextInputStream;
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import de.anomic.http.httpc;
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import de.anomic.plasma.plasmaParserDocument;
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import de.anomic.plasma.parser.AbstractParser;
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import de.anomic.plasma.parser.Parser;
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import de.anomic.plasma.parser.ParserException;
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import de.anomic.server.serverFileUtils;
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import de.anomic.server.logging.serverLog;
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public class odtParser extends AbstractParser implements Parser {
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/**
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* a list of mime types that are supported by this parser class
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* @see #getSupportedMimeTypes()
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*/
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public static final Hashtable SUPPORTED_MIME_TYPES = new Hashtable();
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static {
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SUPPORTED_MIME_TYPES.put("application/vnd.oasis.opendocument.text","odt");
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SUPPORTED_MIME_TYPES.put("application/x-vnd.oasis.opendocument.text","odt");
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}
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/**
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* a list of library names that are needed by this parser
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* @see Parser#getLibxDependences()
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*/
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private static final String[] LIBX_DEPENDENCIES = new String[] {"odf_utils_05_11_10.jar"};
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public odtParser() {
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super(LIBX_DEPENDENCIES);
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parserName = "OASIS OpenDocument V2 Text Document Parser";
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}
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public Hashtable getSupportedMimeTypes() {
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return SUPPORTED_MIME_TYPES;
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}
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public plasmaParserDocument parse(URL location, String mimeType, File dest) throws ParserException {
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try {
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byte[] docContent = null;
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String docDescription = null;
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String docKeywords = null;
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String docShortTitle = null;
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String docLongTitle = null;
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// opening the file as zip file
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ZipFile zipFile= new ZipFile(dest);
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Enumeration zipEnum = zipFile.entries();
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// looping through all containing files
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while (zipEnum.hasMoreElements()) {
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ZipEntry zipEntry= (ZipEntry) zipEnum.nextElement();
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String entryName = zipEntry.getName();
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// content.xml contains the document content in xml format
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if (entryName.equals("content.xml")) {
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InputStream zipFileEntryStream = zipFile.getInputStream(zipEntry);
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OpenDocumentTextInputStream odStream = new OpenDocumentTextInputStream(zipFileEntryStream);
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docContent = serverFileUtils.read(odStream);
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// meta.xml contains metadata about the document
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} else if (entryName.equals("meta.xml")) {
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InputStream zipFileEntryStream = zipFile.getInputStream(zipEntry);
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ODFMetaFileAnalyzer metaAnalyzer = new ODFMetaFileAnalyzer();
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OpenDocumentMetadata metaData = metaAnalyzer.analyzeMetaData(zipFileEntryStream);
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docDescription = metaData.getDescription();
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docKeywords = metaData.getKeyword();
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docShortTitle = metaData.getTitle();
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docLongTitle = metaData.getSubject();
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// if there is no title availabe we generate one
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if (docLongTitle == null) {
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if (docShortTitle != null) {
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docLongTitle = docShortTitle;
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} else if (docContent.length <= 80) {
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docLongTitle = new String(docContent);
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} else {
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byte[] title = new byte[80];
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System.arraycopy(docContent, 0, title, 0, 80);
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docLongTitle = new String(title);
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}
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docLongTitle.
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replaceAll("\r\n"," ").
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replaceAll("\n"," ").
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replaceAll("\r"," ").
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replaceAll("\t"," ");
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}
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}
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}
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return new plasmaParserDocument(
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location,
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mimeType,
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docKeywords,
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docShortTitle,
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docLongTitle,
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null,
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docDescription,
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docContent,
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null,
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null);
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} catch (Exception e) {
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e.printStackTrace();
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throw new ParserException("Unable to parse the odt content. " + e.getMessage());
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} catch (Error e) {
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throw new ParserException("Unable to parse the odt content. " + e.getMessage());
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}
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}
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public plasmaParserDocument parse(URL location, String mimeType, InputStream source) throws ParserException {
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File dest = null;
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try {
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// creating a tempfile
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dest = File.createTempFile("OpenDocument", ".odt");
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dest.deleteOnExit();
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// copying the stream into a file
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serverFileUtils.copy(source, dest);
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// parsing the content
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return parse(location, mimeType, dest);
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} catch (Exception e) {
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throw new ParserException("Unable to parse the odt document. " + e.getMessage());
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} finally {
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if (dest != null) try { dest.delete(); } catch (Exception e){}
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}
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}
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public void reset() {
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// Nothing todo here at the moment
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}
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public static void main(String[] args) {
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try {
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if (args.length != 1) return;
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// getting the content URL
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URL contentUrl = new URL(args[0]);
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// creating a new parser
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odtParser testParser = new odtParser();
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// setting the parser logger
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testParser.setLogger(new serverLog("PARSER.ODT"));
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// downloading the document content
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byte[] content = httpc.singleGET(contentUrl, 10000, null, null, null);
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ByteArrayInputStream input = new ByteArrayInputStream(content);
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// parsing the document
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testParser.parse(contentUrl, "application/vnd.oasis.opendocument.text", input);
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} catch (Exception e) {
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e.printStackTrace();
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}
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}
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}
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Loading…
Reference in new issue